baber/WOPTO huggingface dataset:
Patent GB-446716-A (GB)
Title: A process for the manufacture of oils and paraffin wax
IPC: C10G73/04
Filed: 1935-07-08
Abstract: Oils such as lubricating or gas oil are dewaxed by adding a diluent and a pour point depressant and separating the wax at a low temperature.  Pour point depressants consist of; cracking or distillation residues from oils, asphalt, polymerized aromatic compounds obtained from hydrocarbon oils, pyrogenetic polymerization or condensation products from vegetable oils or fats, metal soaps, or compounds built up of 5 and/or 6 atoms having side chains as described in Specification 419,820. Example: a lubricating oil is diluted with ethyl alcohol and benzine and a small amount of a cracking residue, aluminium stearate or di-stearyl picene is added. The mixture is then cooled to -20 DEG  C., and filtered.  Gasoline, acetone, butyl alcohol, tetrahydro-naphthalene, benzene, or mixtures thereof may also be used as diluents.  The pour point depressant is usually separated with the wax.  The dewaxed lubricating-oil may be further treated with a decolorizing earth.
Patent GB-725632-A (GB)
Title: Continuous ice cream freezer and method of making ice cream
Inventor: MURPHY WALTER LILBERN
IPC: A23G9/20
Filed: 1953-07-16
Abstract: 725,632. Ice-cream freezers. DE-RAEF CORPORATION. July 16, 1953, No. 19722/58. Class 29. A continuous ice-cream freezer comprises a freezer tube 48 through which the mix is carried by a screw 80 and which is cooled by a compressed gas fed through expansion valves 42 into a jacket 40, the expanded gas being led from the jacket through a pipe 66 to a mixing chamber 68 where it is mixed with the ice-cream mix entering through a pipe 18 to provide the "over-run" and to pre-cool the mix. The compressed gas may be air, nitrogen, oxygen or carbon dioxide. The jacket 40 is insulated and the valves 42 have adjusting knobs 44 and are fed from a manifold connected to a pike 28 to which one or more gas bottles can be coupled through hand-operated valves. The exit of pipe 18 has spiral ribs 70 which give a whirling motion to the mix entering the tube 48 and is surrounded by a plate 74 having oblique apertures 76. These apertures give the gas a whirling motion in the same direction as that of the mix so as to mix thoroughly the mix and the gas in the entry pipe 72 leading to the tube 48. Pipe 72 increases in cross section to further expand the gas. Tube 48 terminates in a square exit nozzle 90 having a flap valve 92 pivoted by a shaft 94 and urged to closed position by a spring 96, the tension of which is adjustable by a pin and hole arrangement 100, 102. The flap is opened by the pressure of the cream and the hardness of the product can be varied by varying the tension of spring 96, the setting of expansion valves 42 and the speed of the screw 80. The amount of "over-run" can be adjusted by bleeding off gas from pipe 66 through a valve 65. Jacket 40 has a relief valve 62 and a pressure gauge 64. The speed of the pump (not shown) feeding the mix to pipe 18 can be varied. Freezer tube 48 has external fins 50 within the jacket 40.
Patent GB-135911-A (GB)
Title: Improvements in or relating to the Fuel Supply of Internal Combustion Engines.
Inventor: COWEY LEONARD EUGENE
IPC: F02M37/00
Filed: 1918-11-29
Abstract: 135,911. Cowey, L. E. Nov. 29, 1918. Direct air-pressure apparatus, automatic.-In apparatus in which liquid fuel is raised from the fuel tank to the carburettor of an engine by pneumatic pressure, a mercury trap is used instead of a rigid valve to control the pressure in the tank. A vessel 2 containing mercury up to the level x has a cover 12, from which depend three pipes 5, 6, 7, which dip into the mercury and serve respectively to supply air and products of combustion from the engine exhaust pipe and for the escape of surplus air or gas. Actuating- air is supplied by a hand pump connected to a pipe 8 and, rising through the mercury, escapes through a pipe 11 to the fuel tank. The rise of pressure above the mercury forces the latter up the pipe 7 into the chamber 3, exposes the holes 7<c> at the base, and allows surplus air to escape through the pipe 7 and chamber 3 to the atmosphere. After starting, pressure is supplied through the pipe 9 from the engine exhaust-pipe and with the same result.
Patent GB-694279-A (GB)
Title: Improvements in or relating to container opener
Inventor: DONNELLY JOSEPH BARTHOLOMEW
IPC: B67B7/48
Filed: 1951-08-22
Abstract: 694,279. Can-openers. SCHENLEY INDUSTRIES, Inc. Aug. 22, 1951, No. 19795/51. Class 66. A can-opener for cutting an opening in the top of a cylindrical can of predetermined size and shape comprises a base member A having a can receiving recess 16 with arcuate rear wall 18 conforming to the can shape, a head member B disposed over said recess 16 with means, to move it toward or away from said recess and having a cutter blade 29 substantially semi-circular in crosssection depending from the back thereof and a shield 19 also substantially semi-circular in crosssection depending from the front of the head member B, the mid-points of the arcs of cutter 29 and shield 19 being diametrically opposite one another and spaced apart by a distance approximately equal to the diameter of the can to be cut. The bottom portion of the shield 19 is flared slightly outwardly and projects downwardly below the point of the cutter 29 which is arranged to cut an opening in the top of a can inserted in the recess 16 when the head member B is moved down, the flared portion of the shield 19 guiding the can into cutting position within the recess 16. The top of the arcuate rear wall 18 has a small flange 20 to engage the top bead of the can and hold it substantially immovable especially during withdrawal of the blade 29 therefrom. The head member B is carried on a rack 27 engaged by a pinion 24 mounted on a shaft 23 which can be manually rotated by a lever handle (not shown). The cutter 29 has welded thereto a substantially triangular baffle member 32 (Fig. 10) which serves to bend the cut part of the top of the can downwardly into the interior thereof as indicated in Figs. 12-15 (not shown) to render the can suitable for use as a drinking receptacle. Alternatively two such triangular baffles may be formed by cutting out two edges of each from the cutter 29 itself and bending the portions defined by said cuts inwardly approximately 90 degrees as in Fig. 11 (not shown). The cutter 29 is preferably secured in the head member B by two set screws Fig. 9 (not shown) so as to be readily removable.
Patent GB-1112353-A (GB)
Title: Rotational shaft encoder
IPC: G01C19/38
Filed: 1966-05-04
Abstract: 1,112,353. Shaft position encoders. LITTON INDUSTRIES Inc. 4 May, 1966 [4 May, 1965], No. 19795/66. Heading G4H. Two coded scales 26, 34 are driven at different speeds and are sensed by brush blocks 46, 44, provision being made for adjusting the relative angular positions of the brush blocks 46, 44 without having to dismantle or disconnect the encoder. High speed disc 26 and cylindrical member 17 are press-fits on shaft 16, member 17 having a recess containing a planet gear 20 which rotates about shaft 18 and meshes with a fixed gear 12 and a gear 14 formed on a sleeve freely rotatable about shaft 16 and carrying the low-speed disc 34. Gear 12 has 33 teeth and gear 14 has 32 teeth thereby providing a <SP>1</SP>/ 32  speed reduction between discs 26, 34. Relative rotation of the brush blocks 46, 44 is achieved by rotating mounting ring 38 with respect to housing 10. In the embodiment shown, end cap 50 is secured to housing 10 by cover 64, and mounting ring 38 threadably engages screws 40 which pass through elongated slots 42 in cap 50. In another embodiment, the slots 42 are provided in mounting ring 38 and screws 40 threadably engage housing 10.
Patent GB-679549-A (GB)
Title: Improvements in or relating to synthetic resinous materials
IPC: C08J9/24
Filed: 1949-07-29
Abstract: Microporous synthetic resinous material is prepared by sintering to an integral microporous whole a mass, in finely divided form, comprising a plurality of different synthetic resins.  The mass may be obtained by mixing latices of the resins and causing precipitation or by heating the resins, mechanically working them together, cooling the mixture and finally subdividing.  One of the resins may be vulcanizable such as butadiene-acrylonitrile or butadiene-styrene copolymer, and another may be polyvinyl chloride, a vinylidene chloride-acrylonitrile copolymer or polystyrene; one of the resins may be a solid plasticizer for one or more other resins in the microporous material.  Vulcanizing ingredients and finely divided cork may be incorporated before sintering, and the microporous material may be treated with a liquid comprising a plasticizer for at least one of the resins so as to increase its flexibility.  The microporous material may be used in the production of shoes, handbags and upholstery.
Patent GB-819530-A (GB)
Title: Improvements in or relating to control circuits for gas-filled valves
IPC: G05B11/01
Filed: 1956-06-27
Abstract: 819,530. Rectifying. BROD, S. Sept. 23, 1957 [June 27, 1956], No. 19939/56. Class 38 (2). The conductivity of a gas-filled valve Vl through which half-wave rectified current is supplied to load L from A.C. source S1 is controlled by the voltage across capacitor C connected to its grid. When triode V2 is non-conductive capacitor C is charged from D.C. source S2 through resistor R to make the grid of V1 positive so that this valve conducts over most of each positive half cycle. When triode V2 is made conducting during the negative half cycles by a variable control voltage S3 applied to its grid, capacitor C is charged negatively to an extent determined by the voltage S3. During each positive half cycle the capacitor discharges through resistor R and source S2 until the grid of valve V1 becomes sufficiently positive for that valve to conduct. The instant of conduction is thus determined by the value of control voltage S3. In modifications the two gas-filled rectifiers are connected in bi-phase and are controlled together by two triode sections in one envelope (Fig. 2, not shown) or by a single triode, interaction between the gas-filled valves being prevented by rectifiers (Fig. 4, not shown). In another modification two valves are independently controlled to vary both the direction and magnitude of the load current (Fig. 3, not shown). By connecting capacitor C and resistor R in parallel between the source S2 and the grid (Fig. 5, not shown) or between source S2 and the cathode, Fig. 6, the internal resistance of source S2 does not effect the RC time constant when C is discharging. In the circuit of Fig. 6 current from S1 does not flow through S2. In the arrangement of Fig. 7 triode V2 is replaced by a variable resistor RV in series with a rectifier G3.
Patent GB-616885-A (GB)
Title: Improvements in and relating to trip mechanism
IPC: G05G17/00
Filed: 1946-07-04
Abstract: 616,885. Fluid-actuated valves. BROWN, 'N. F. July 4, 1946, No. 20048. [Class 135] [Also in Group XXVIII] A trip mechanism comprises a spring- actuated trip lever 8 provided with a roller 11 adapted to be positioned beneath a fixed abutment 14 to hold the lever against the action of a spring 3; the lever is moved by a rod 26, connected to a flexible diaphragm 27 located in an eduction oil pipe 28 till the dead-centre of the roller is past the outer edge of the abutment 14, when it is released. The trip lever which comprises a pair of parallel plates actuates a piston 19 through a fork 16 which rests on a cross-piece 9 connecting the top of the plates, the piston in turn actuating a rod 22 to open a valve 23 against the action of a spring 25. The mechanism is reset by fluid pressure supplied to a cylinder 20 by a conduit 21 to force the piston 19 downwards to depress the fork 16 and the lever 8 against the action of the spring 3. Specification 616,887, [Group XXVIII], is referred to.
Patent GB-474479-A (GB)
Title: Improvements in relation to the production of foam for fire-extinguishing purposes
IPC: A62D1/06
Filed: 1936-07-20
Abstract: 474,479. Making foam. PYRENE CO., Ltd., and RATZER, A. F. July 20, 1936, No. 20075. [Class 47 (ii)] In the production of foam, particularly suitable for use in extinguishing alcohol fires, a saturated fatty acid soap and a hydroxy fatty acid soap are added to the foam-forming ingredients as stabilizing agents. A dry foamforming powder may contain aluminium sulphate, sodium bicarbonate, liquorice, sodium laurate, and sodium ricinoleate. An alkaline solution for reaction with a solution of aluminium sulphate may contain potassium bicarbonate, saponin, sodium stearate, and sodium ricinoleate.
Patent GB-187344-A (GB)
Title: An improved liquid-level indicator for use in ships' bilges, oil tanks and the like
IPC: B63B39/12
Filed: 1921-07-27
Abstract: 187,344. Bannister, A., and Pringle, T. July 27, 1921. Indicators actuated by floats.-In a liquid-level indicator, particularly for use in ships' bilges, oil - tanks and the like, of the type in which a graduated tape 3 moves over rollers 4 beneath an inspection opening 2 and is connected at one end to a guided float 12 and at the other to a counterbalancing weight 6, the tube containing the float and weight is made in three sections 11, 18, 19, the lowest being perforated. In a modification, Fig. 3, the tape moves over rollers or a surface 17 in a box 14 on the ship's deck the float being protected by a perforated tube 11 and the weight by a tube 15.
Patent GB-396221-A (GB)
Title: Improvements in or relating to containers for molten material
IPC: B22D41/12
Filed: 1932-07-15
Abstract: 396,221. Railway bank wagons. PUGH, J. D., 401, Title Annex Building, Baltimore, U.S.A. July 15, 1932, No. 20117. Convention date, July 21, 1931. [Class 103 (iv).] A transportable container for molten material, such as metal or slag, which may serve also as a ladle or mixer, comprises a preferably cylindrical body supported on trucks and having a discharge spout communicating with an outlet near the bottom of the container, the outlet of the spout being adapted to be raised. or lowered relatively to the container body. The spout may also serve as an inlet. In the form shown, the container 10 communicates through an aperture 40 in an annular plug 39 with a spout 35 rotatably mounted in a bracket 44 and in a flange 30 formed in the end wall 12 of the container, pulverized refractory packing 42, Fig. 4, being provided between the flange 30 and the surface of the spout lining 34. The spout is operated by gearing 53, 55, which may be driven by a motor 56. The spout is provided with a cover 51 and with baffles 66 which serve as skimmers during pouring. A clean.cut hole 14 is closed by a plug 15, Fig. 6, mounted at 20 on arms 18 movable about a vertical axis 19 and secured by a hand-wheel 25, sleeve 24, and screwed rod 22 mounted at 23. The container is mounted on a number of trucks, preferably the end trucks only being pivoted to the container body. At each of the intermediate trucks a bracket 78 is provided having a horizontal lower face which slides in a channel-shaped block 76 pivoted to the bolster 75 of the truck. A modification consists of a relatively short container supported on two trucks and provided with means for engagement by lifting-hooks for transport as a ladle.
Patent GB-987797-A (GB)
Title: Improved method of hardening photographic silver halide material
IPC: G03C1/30
Filed: 1962-05-25
Abstract: 987,797. Photographic materials. ADOX FOTWERKE, DR. C. SCHLEUSSNER G.m.b.H. May 25, 1962 [May 26, 1961], No. 20239/62. Heading G2C. Photographic gelatino-silver halide emulsion layers or gelatin overcoats are hardened by incorporating therein an ester of an alkylene glycol with polymannuronic acid, and treating the layer with an alkaline solution. The alkaline treatment may take space in the usual developing baths, and the pH should be at least 9. 6. In the examples, the ethylene or propylene glycol ester of polymannuronic acid is added to gelatino silver halide emulsions or to a gelatine overcoating. After development in an alkaline developer solution the emulsion coatings are resistant to boiling water.
Patent GB-205241-A (GB)
Title: Improvements in and relating to tractor wheels
IPC: B60B15/12
Filed: 1922-07-24
Abstract: 205,241. Evans, T. H. July 24, 1922. Slipping - preventing attachments to wheels; disc wheels.-In a tractor wheel having an eccentric cleat-carrying member by means of which the wheel is adapted for use on roads or soft ground, the said member is adjusted directly by means of a hand-lever. To a reduced axle portion 1<x> is feathered a conical sleeve 2 to a flange 4 of which is fixed a member 8, an annular flange on which is formed with a number of slots 10. On the sleeve 6<x> of the member 8 is mounted a sleeve 11<x> having an eccentric portion 11 which fits closely within lateral shoes 26 on a disc 15 eccentrically mounted on the sleeve 11<x>. An inner hub-member 12 is also mounted on the sleeve 11<x>. Annular discs 19, 22 are fixed to the member 8. 12 and carry a rimportion 16 through slots 17 in which and the slots 10 pass cleats 23. The inner ends of the cleats are pivoted to the shoes 26 by rings 29. The sleeve 11<x> and the eccentric member 11 can be rotated by means of a lever 30 which can be held in the required position by the engagement of a hand-actuated dog 34 with a fixed quadrant 32. Spring-pressed scrapers are secured within the rim adjacent each cleat.
Patent GB-818091-A (GB)
Title: Improvements in rotary pumps
IPC: F04B9/14
Filed: 1956-07-02
Abstract: 818,091. Rotary pumps. MUNRO, R., and KINGSBURY, W. G. Oct. 2, 1957 [July 2, 1956], No. 20405/56. Class 110 (2). A rotary pump. Fig. 1, comprises a flexible belt 7 having pocket-defining serrations 10, a driving pulley 6 therefor and a freely mounted pulley 5, the pulley 5 being provided with a port 8 enabling communication between the pockets in the V-belt and an outlet port 9. In a modification the belt is held stationary and used in association with three pulleys, one of which is reciprocated as a movable jockey along one run of the belt. Alternatively, three delivery pulleys may be mounted on a common frame which is adapted to rotate inside the belt. In a final modification, a discharge member 20, Fig. 5, is fitted between the parallel runs of the belt and terminates adjacent two non-ported pulleys, the liquid being discharged through bores 25, 26 communicating with a passage in the pump casing. A jockey arrangement is also provided to keep the belt tightly on the pulleys, see also Figs. 3 and 4 (not shown).
Patent GB-379054-A (GB)
Title: Improvements in advertising signs and the like
IPC: G09F11/26
Filed: 1931-07-17
Abstract: 379,054. Moving signs. DURRANS, J. E., 103, Cemetery Road, Beeston Hill, Leeds. July 17, 1931, No. 20475. [Class 3 (i).] Optical-projection apparatus.-An endless display band A passes intermittently over rollers D, G in a manner such that its exhibited portion lies in a horizontal plane and its reserve portion accumulates in folds in a vertical container F. The band A may be viewed in one or more adjustable inclined mirrors L, or the container F be supported by trunnions M to allow of tilting to bring the band into sight. A motor B drives the roller D either directly or through gearing C, a spring or gravity-controlled jockey roller H bearing on the band A and roller D. The displayed portion of the band A is supported by a transparent, opaque, or coloured tray I, and is covered by clear or coloured glass &c. E or by a transparent mirror which allows the band to be seen only when lamps N backed by reflectors 0 are lit. An optical projector may be provided, the band A then being a film or a series of lantern slides mounted on films. The part of the casing K containing the horizontal display portion may be considerably elongated.
Patent GB-1206961-A (GB)
Title: Vehicle lighting systems
Inventor: LITTLE PHILLIP VERNON
IPC: B60Q1/42
Filed: 1967-05-03
Abstract: 1,206,961. Mechanical switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 18 March, 1968 [3 May, 1967], No. 20553/67. Heading H1N. [Also in Division H2] A switch for controlling the operation of the headlamps on a vehicle includes a handle which is movable in one plane between three stable positions and which can also be moved in another plane into an unstable position, in which one switch is closed and another is opened, for flashing the headlamps. In the embodiment shown, a handle 25 can be moved horizontally about a pin 22, i.e. in the plane of Fig. 3, to any of three positions in which it is held by the action of a spring plunger 45 moving in a cam-track 47, Fig. 4. The handle can also be moved upwardly against the action of a return spring 42. The off position of the handle is when it is positioned to the left as seen in Fig. 3, and movement to the central position shown energizes the main beam filaments of the headlamps by positioning a conducting member 41 so that it forms a bridge between two conducting balls 31, 32. This action completes a circuit between terminals 28a and 29a by way of conducting strips 28, 29, balls 31, 32 and the member 41. Moving the handle 25 to its third horizontal position causes the member 41 to bridge the ball 31 and a contact (36), Fig. 2 (not shown), connected to a terminal 36a, so making a circuit between terminals 28a and 36a to energize the dipped beam filaments. The main beam filament can also be energized by raising the handle 25. This movement causes a member 38, Fig. 4, to be pushed downwards, and so close a pair of contacts 33 and 34. The contact 34 is attached to a strip 35, Fig. 3, and the contact 33 is fixed to the strip 29, so that a path is now made between terminal 29a and a terminal 35a, on strip 35. Raising the handle 25 also frees the ball 32 by bending the strip 29, Fig. 4, so that the connection between the member 41 and the strip 29 is severed. This ensures that the vehicle side and tail lamps are not flashed with the headlamps. (See also Division H2).
Patent GB-1059004-A (GB)
Title: Electric accumulator with spirally coiled electrodes
IPC: H01M50/538
Filed: 1965-05-14
Abstract: 1,059,004. Batteries. VARTA A.G. May 14, 1965 [May 16, 1964; Aug. 14, 1964], No. 20573/65. Heading H1B. Positive and negative electrodes 1, 2 are separated by partition members 3 and provide along the whole of their length solid metal rims 4, 5 projecting on opposite sides, such that when the electrodes are rolled into cylindrical form (Fig. 2, not shown) the metal rims 4, 5 project so as to be weldable to terminal posts (7), (8), respectively, at each end face of the cylinder. Each rim is welded at various positions (6) to an opposite adjacent part of the rim of an adjacent electrode of the same polarity (Fig. 3, not shown). The terminal posts have grooves (9) assisting in making good welded contact between the posts and the metal rims (Fig. 4, not shown).
Patent GB-229949-A (GB)
Title: Improvements in or relating to tyres for vehicle wheels
IPC: B60C7/12
Filed: 1924-09-26
Abstract: 229,949. Fowle, G., and Bailey, J. Sept. 26, 1924. Non-metallic elastic bodies and cores. - A cushion tyre is formed with a central web A of rubber, rubber and fabric, &c., with an extended base B which may be of arched form, as shown, or flat. The edges of the side walls are closed bv a rubber band E.
Patent GB-160146-A (GB)
Title: Improvements in steering axles for motor vehicles and the like
IPC: B62D7/18
Filed: 1920-07-10
Abstract: 160,146. Soc. Anon. Officine Meccaniche Isolabella. March 9, 1920, [Convention date]. Deflectable axle-ends.-The stub axles B are pivoted by means of balls A' mounted in hemispherical cavities in the head B<1> and in screwed plugs G in the forked ends of the axle A. The upper plug G is provided with a lubricator E, passages F, F<1> being provided.